ellipsis()
  overflow:  hidden
  text-overflow: ellipsis
  white-space: nowrap

ellipsis2()
  text-overflow: -o-ellipsis-lastline;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical

clearBoth()
  clear: both